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Polymer Science, Series A
Published in: Polymer Science, Series A 4/2019

01-07-2019 | POLYMER BLENDS

Analysis of the Structure of Ultrafine Fibers Based on Poly(3-hydroxybutyrate) and Polylactide: Effect of External Factors

Authors: S. G. Karpova, A. A. Ol’khov, A. A. Popov, A. L. Zhul’kina, A. L. Iordanskii

Published in: Polymer Science, Series A | Issue 4/2019

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Abstract

Ultrafine fibers of a blend composite of a biodegradable natural polyester poly(3-hydroxybutyrate) and polylactide are obtained by electrospinning. Using optical microscopy, it is shown that the fibers, depending on composition, have different diameters and geometries. The features of the crystalline and amorphous structure of the composite are investigated by the EPR probe technique and DSC. Adding 10, 30, 50, and 70% poly(3-hydroxybutyrate) to the composite dramatically reduces the molecular mobility of the probe. Annealing at 140°C and exposure in an aqueous medium at 70°C have a strong effect (significantly shorten the correlation time of probe rotation) in polylactide fibers. In blend composites and poly(3-hydroxybutyrate), these changes are not so significant.
previous article Antimicrobial Properties of Polyelectrolyte–Amphiphilic Surfactant Complexes Containing Quaternary Ammonium Groups
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Metadata
Title
Analysis of the Structure of Ultrafine Fibers Based on Poly(3-hydroxybutyrate) and Polylactide: Effect of External Factors
Authors
S. G. Karpova
A. A. Ol’khov
A. A. Popov
A. L. Zhul’kina
A. L. Iordanskii
Publication date
01-07-2019
Publisher
Pleiades Publishing
Published in
Polymer Science, Series A / Issue 4/2019
Print ISSN: 0965-545X
Electronic ISSN: 1555-6107
DOI
https://doi.org/10.1134/S0965545X19040059

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